Studsvik announces partnership to deploy four BWRX-300s in Sweden

September 3, 2026, 3:02PMNuclear News
Representatives from the ReFirm program gather for the announcement of their partnership. (Photo: Studsvik)

Swedish engineering services firm Studsvik and its partners have teamed up on a four-unit BWRX-300 new build project in southern Sweden. On Thursday, Studsvik entered into a joint development agreement with GE Vernova Hitachi Nuclear Energy, GE Vernova Financial Services, DS Investment Partners, and Samsung C&T to advance the 1.2-GW ReFirm program, with the expectation the first unit will commence operations in the mid-2030s.

ANS and INMM host webinar on digital twins and safeguards

September 3, 2026, 1:21PMANS News

The American Nuclear Society and the Institute of Nuclear Materials Management recently cohosted a webinar exploring recent advancements in digital twins for nuclear safeguards.

The program featured a panel of experts in digital twin research, including Manuel Kreutle of Forschungszentrum Jülich, Nick Luciano of the University of Texas–Austin, Ryan Stewart of Idaho National Laboratory, and Pavel Tsvetkov of Texas A&M University. Luis Ocampo Giraldo of the National Nuclear Security Administration moderated the talk.

Realta Fusion’s utility partnership boosts fusion energy in Wisconsin

September 3, 2026, 7:09AMNuclear News
The Wisconsin HTS Axisymmetric Mirror (WHAM) prototype plasma fusion device being used in experiments by Realta Fusion and the University of Wisconsin–Madison. (Photo: Realta Fusion)

Realta Fusion and Madison Gas and Electric (MGE) are collaborating to bring fusion power to Wisconsin. As reported by Wisconsin Public Radio and other news outlets, as well as MGE, the Madison-headquartered startup company and utility are exploring the development, siting, permitting, and financing of a 200-MWe-minimum fusion facility that would be capable of generating enough electricity for approximately 150,000 homes.

Oklo claims PJM improperly dropped its Virginia project

September 2, 2026, 3:28PMNuclear News
A rendering of Oklo’s Aurora powerhouse design. (Image: Oklo)

Last Friday, Oklo filed an emergency request with the Federal Energy Regulatory Commission claiming that one of its potential generation projects has been “unjustifiably withdrawn” from the PJM Interconnection queue. Through that request, Oklo has asked FERC to direct PJM to reinstate its application with its original queue position.

In an interesting twist, the project at issue in this interconnection dispute was, until now, unknown to the public.

ORNL explores hybrid approach to manufacturing HIP cans

September 2, 2026, 1:36PMNuclear News
A hybrid manufacturing process combines 3D printing, electroforming, and hot isostatic pressing to produce critical components for advanced nuclear reactors and other energy and defense applications. (Image: Morgan Manning, Brett Hopwood/ORNL)

Oak Ridge National Laboratory scientists have collaborated with A.J. Tuck Company to develop a new manufacturing approach for use with the hot isostatic pressing (HIP) technique. The hybrid approach combines 3D printing and electroforming to produce so-called HIP cans used to form metal parts from powder materials, aiming to simplify the production of critical reactor components.

Tennessee issues commercial fusion license to Type One Energy for Bull Run site

September 2, 2026, 9:52AMNuclear News
Participating in the August 31 announcement of the issuance of the Tennessee Department of Environment and Conservation’s byproduct material license to Type One were (from left) TVA Interim President and CEO Mike Skaggs, Tennessee Gov. Bill Lee, Type One CEO Chris Mowry, Type One Vice President of Regulatory Affairs and Licensing Pascal Dumont, and Type One Radiation Officer Larry Harisis. (Photo: TDEC)

The Tennessee Department of Environment and Conservation (TDEC) has issued Type One Energy the first license to operate a commercial fusion machine in the state. The state license is also the first to be issued after the Nuclear Regulatory Commission issued a proposed rule on an augmented byproduct material framework earlier this year. The NRC proposed in February that the framework be expanded “to accommodate the wide variety of anticipated fusion machine designs across the National Materials Program.”

GSE Solutions gives talk on enabling uprates

September 2, 2026, 7:20AMNuclear News

The American Nuclear Society recently hosted a Supplier Showcase webinar, “Advancing DVR for MUR: Lessons from First-of-a-Kind Projects,” featuring Greg Kanuckel, director of thermal performance at GSE Solutions, who shared his insights on data validation and reconciliation (DVR) and its impact on conducting measurement uncertainty recapture (MUR) uprates in nuclear power plants.

ANL dust study aims to improve emergency response models

September 1, 2026, 4:09PMNuclear News
An emergency vehicle test to measure the amount of dust resuspended from the ground. (Photo: Argonne National Laboratory)

Researchers at Argonne National Laboratory have conducted experimental tests on how particles from paved surfaces become suspended from activities such as walking, driving, and vacuuming, aiming to improve modeling of radiological and other contamination scenarios where emergency operations may kick up hazardous dust.

ANS webinar explores systematic risk evaluations

September 1, 2026, 2:14PMNuclear News

The American Nuclear Society’s Risk-informed, Performance-based Principles and Policy Committee (RP3C) recently held another presentation in its monthly Community of Practice (CoP) series. Former RP3C chair N. Prasad Kadambi opened the meeting with brief introductory remarks about the RP3C and the value of risk-informed, performance-based (RIPB) techniques in contrast to the shortcomings of conventional, deterministic approaches for the development of nuclear technology.

Holtec SMR-300 testing facility progresses at INL

September 1, 2026, 11:54AMNuclear News
The HI-TEST facility at Idaho National Laboratory. (Photo: Holtec)

Holtec has announced it is advancing with component fabrication for a testing facility at Idaho National Laboratory that it will use to quantify performance margins of its SMR-300 pressurized water reactor. The facility, dubbed HI-TEST, will use test loops to replicate accident scenarios and steam generator behavior, aiming also to support future power uprating for SMR-300 units.

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EIA details 2025 gains in U.S. uranium production

September 1, 2026, 9:35AMNuclear News
U.S. U3O8 production more than tripled from 2024 to 2025. (Image: Energy Information Administration)
Data source: U.S. Energy Information Administration, Monthly Energy Review, and Domestic Uranium Production Report
Note: W=Data withheld to avoid disclosure of individual company data.

According to the Energy Information Administration (EIA), the amount of uranium concentrate produced in the United States in 2025 was more than three times greater than that produced the year before, and amounted to about 2.1 million pounds of U3O8, compared with the 657,000 pounds generated in 2024. It’s the largest amount produced in the United States since 2017.

Nuclear’s Next Chapter Has a Knowledge Challenge

September 1, 2026, 7:59AMSponsored ContentPark Nuclear Power Generation Solutions

The nuclear industry is entering a new chapter.

Existing plants are extending operating lives beyond their original design expectations. New reactor technologies are moving from concept to construction. Investment in domestic manufacturing and fuel production is accelerating, and utilities are strengthening supply chains to support decades of future operation.

At the same time, another transition is taking place.

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Fuel loading process begins at Palisades

August 31, 2026, 3:27PMNuclear News
The Palisades reactor cavity and fuel-handling machine. (Photo: Holtec)

The Palisades nuclear power plant has drawn closer to restart, as plant staff began the process of loading fuel into the reactor vessel on Sunday morning.

The commencement of fuel loading places the Covert, Mich., facility in Mode 6—or the refueling stage—under the plant’s technical specifications, plant owner and operator Holtec International said in a news release. The Palisades reactor core consists of 204 fuel assemblies that include new fuel and partially used fuel from the plant’s most recent operating cycles. According to Holtec, the fuel loading is being conducted in accordance with plant procedures and technical specifications.

ATLAS, new MARAD partnership, among latest maritime nuclear announcements

August 31, 2026, 12:42PMNuclear News
IAEA Director General Rafael Mariano Grossi (left) and DOE Secretary Chris Wright. (Photo: IAEA)

Just days after the Department of Transportation’s Maritime Administration (MARAD) and the Port of Corpus Christi announced a partnership to explore the development of small modular reactors in the U.S. seaport, multiple other maritime nuclear announcements were unveiled to the public, including another MARAD partnership.

Posiva begins drilling disposal holes at Finland’s Onkalo repository

August 31, 2026, 9:35AMNuclear News
The disposal tunnel where the drilling of holes for nuclear waste has begun at Posiva’s Onkalo deep geological repository in Finland. (Photo: Posiva)

Last week the Finnish nuclear waste management company Posiva began drilling holes for final disposal at the Onkalo deep geological repository, near the Olkiluoto nuclear power plant in western Finland. The company’s German-made Deposition Hole Boring Machine (DHBM) took about 10 hours to drill the first hole, with a depth of 8.4 meters and a diameter of 1.75 meters, into the 1.9-billion-year-old bedrock. This is the first deposition hole intended for an iron-copper canister containing spent nuclear fuel—though test holes have been drilled at the site since 2022.

The Onkalo repository received a favorable safety assessment from the Radiation and Nuclear Safety Authority of Finland earlier in August.

Awards presented at NECX 2026

August 31, 2026, 7:12AMANS News
IAEA Director General Rafael Mariano Grossi speaking at NECX 2026. (Photo: ANS/NEI)

Last week, the American Nuclear Society and the Nuclear Energy Institute jointly hosted the second annual Nuclear Energy Conference & Expo in Dallas, Texas. NECX serves as both a combination and evolution of ANS’s Utility Working Conference and NEI’s Nuclear Energy Assembly.

For the second year in a row, NECX brought together utilities, advanced reactor developers, suppliers, regulators, policymakers, investors, engineers, and innovators for a wide range of discussions pertaining to the present and future of the industry.

Five companies, five bases: The Army’s Janus Program takes shape

August 28, 2026, 3:12PMNuclear NewsLucas Geiger

Between the Nuclear Lifecycle Innovation Campuses and Nuclear Energy Launch Pad programs, August has already been a busy month for federal partnerships with the nuclear industry.

That trend continues: On Wednesday, the Department of the Army announced that it has selected five nuclear reactor developers—Antares Nuclear, BWXT Advanced Technologies, General Atomics Electromagnetic Systems, Radiant Industries, and Westinghouse Government Services—each paired with a different military installation, for its Janus Program.

This week, the nuclear community descended on Dallas, Texas, for the second annual Nuclear Energy Conference and Expo, the premier industry-focused nuclear conference cohosted by the American Nuclear Society and the Nuclear Energy Institute. Among the plenary panelists was Jeff Waksman, principal deputy assistant secretary of the Army for installations, energy, and environment. Waksman has been closely involved in the development of the Janus Program, and the morning before the program’s new selections were unveiled, he provided insights on its ultimate goals at NECX 2026.

Collaboration key to meeting 2050 goal, NECX 2026 panelists say

August 28, 2026, 1:08PMNuclear News

Based on attendee reactions at yesterday’s final plenary session of the Nuclear Energy Conference & Expo (NECX 2026) in Dallas, Texas, the response is mixed as to whether the United States can fulfill its ambitious plans to quadruple the country’s nuclear generating capacity by 2050. When asked whether the nation would reach that goal, a number of hands in the room went up. But when asked the opposite, several hands also went up.

Moderator Jon Colby told attendees to think positively about the long term.

LLNL simulations calculate ICF’s asymmetry limits

August 28, 2026, 10:52AMNuclear News

A simulation from the study shows density (top) and temperature (bottom) just before the time when fusion reactions peak in an asymmetric implosion. The hottest point coincides with the densest point of fuel, illustrating the direct ignition of a dense jet of fuel driven by asymmetry. The image was recently selected for the cover of Physics of Plasmas. (Image: LLNL)

Researchers at Lawrence Livermore National Laboratory used simulations to show that inertial fusion power plants could tolerate significant low-mode asymmetries, such as those caused by laser alignment being off-center, revealing a trade-off between robustness and yield that could impact how power plants are brought on line.